Soil and vent piping



Jan. 5, 1937. H. A. FABER 5011: AND VENT PIPING Filed March 21, 1936 \NVENTOR Her/barf A. Faber ORNEY Patented Jan. 5, 1937 UNITED STATES PATENT OFFIE 11 Claims.

The present invention relates to combined soil and vent piping.

More particularly, the present invention is directed to a unitary construction of piping afiording venting as well as discharge of fluids, inclusive of fluids discharged from water closets, urinals, lavatories and other fixtures.

In carrying out my invention, the assembly of discharge conduits means and air venting means are arranged in any desired physical relationship, preferably a unitary physical relationship, providing in the variant embodiments conduit means for the flow, usually in vertical downward direction, of discharge fluid and providing air venting for such discharge.

The variant embodiments of my present invention may have any suitable outer configuration. Advantageous embodiments of the invention have outer physical configuration of cylindrical, oval, partly rectangular with partly cylindrical, etc.

Characteristics of variant embodiments of my invention comprise conduit means providing for the downward flow of the discharge, conduit means affording air flow to and from various zones of such discharge conduit means and a plurality of openings affording communication between such zones of the discharge conduit means relative to zones of the air venting conduit means. In preferred embodiments of the invention, such inter-air flow affording means directs the paths of flow of the venting air to preclude entry of any portion of the discharge into the air venting conduit means.

Embodiments of my invention possess high commercial advantages, inter alia, the installation of a single device for affording both discharge and venting purposes, with resultant lower cost of material and labor, exposure of a single deviceafiording both discharge and air venting objectives, savings of wall and room space within a building, adaptation to existing individual soil and air venting piping for connection of additional fixtures to such installation, as Well as enhancing the rate of the elfective flow of the discharge, automatic air venting of the various zones of the discharge conduit means during the stages of non-discharge, etc.

Further features and objects of the invention will be apparent from the following detailed description and the accompanying drawing in which:

Fig. 1 is a fragmentary view in central vertical section through a preferred embodiment of this invention as applied to a soil pipe of a plumbing system.

Fig. 2 is an enlarged detail view of that portion of Fig. 1 included between lines 2-2, Fig. 1.

Fig. 3 is a horizontal section taken on line 3-3, Fig. 2.

Fig. 4 is a horizontal sectional view, similar toi that of Fig. 3, illustrating another embodiment of this invention.

Fig. 5 is a view corresponding to that of Fig. 4, illustrating a further embodiment of the present invention.

Fig. 6 is a fragmentary view, partially in central vertical section, illustrating a still further embodiment of this invention.

Fig. 7 is a horizontal section taken on line 1--1, Fig. 6.

Referring to the drawing and particularly to Figs. 1, 2 and 3, l indicates a pipe section of standard length co-ordinating with other pipe sections it! and one or more Y-branch sections such as illustrated at H to form a main drain or soil pipe in a plumbing system. The soil pipe usually extends co-extensively with the vertical height of the structure embodying the plumbing system, being suitably disposed between wall members such as those illustrated at l2 and I3, and having its upper end (not shown) open to the outside atmosphere, and its lower end (not shown) communicating with any suitable waste disposal system, as a sewer. At various locations along the height of the soil pipe, branch lines interconnect therewith through suitably disposed branch sections as illustrated by the Y-branch connection II, in this particular instance connection being had with the trap M of a watercloset l5.

The soil pipe sections l0 and II, as one pre ferred embodiment of the present invention, may be dimensioned externally to accord with standards of plumbing practice; advantageously, however, the diameter of the pipe is increased slightly as compared with that commonly employed to compensate for reduction in the internal flow passage as hereinafter explained. Connection between individual pipe sections may be conveniently had by a bell-end joint as indicated generally at It.

Each of the soil pipe sections of the type l0 and II are advantageously of cast iron and comprise an exterior imperforate cylindrical wall I! and an interior perforate partition wall It integral with and extending lengthwise of the wall H, the branch section represented by the section II, including in addition a conventional branch member such as the Y-branch member Ila.

The perforate partition Wall [8 is preferably of arcuate configuration and is positioned relative to the exterior wall H to divide the pipe section into a major flow-conduit I9 and a minor air-conduit 2B, the respective conduits of individual pipe sections, upon assembly and vertical alignment of the pipe sections in the formation of a soil pipe, themselves aligning vertically to provide continuation of the respective conduits I9 and 2|] throughout the extension of the composite soil pipe.

Communication between respective conduits l9 and 2B is afforded for air venting through the perforations in the partition wall l8. Such perforations preferably extend at regularly, relatively closely spaced intervals along the length of the partition wall E8 of each pipe section, and thus, upon assembly of individual sections in the formation of a soil pipe, extend from bottom to top of the resulting composite soil pipe. Such perforations desirably individually take the form, as illustrated at 2!, of a wide slot having its lower lip Zia, flared outwardly and the wall of such flared lip extending upwardly into the air conduit 2i to avoid. passage of matter from the fiow conduit l9 into the air conduit 20.

At periods of discharge of waste matter, indicated at 22, into the soil pipe from local branches, such as through the trap [4 of the water-closet I5, venting of the flow conduit I9 is accomplished through one or more of the perforations 2!. Air subjected to pressure, i. e., above atmospheric pressure, in the confines of the flow-conduit below the falling matter 22, is afforded paths of flow in equalization of pressure lowerly through perforations 2! into and through the air conduit 20, indicated by the lower arrows applied in Fig. 1, and may return into the flow-conduit l9 above the successive stages of falling matter 22, indicated by the upper applied arrows, thus speeding the effective rate of fall of the falling matter 22 and obviating the creation of any vacuum. Consequently all code requirements of soil-pipe venting and enhanced rate of discharge of falling matter are effected by the structural characteristics of the pipe itself.

The present invention may assume a variety of different specific embodiments consistent with the provision in a flow-pipe of a component fiow conduit and an air conduit and means affording communication between the component conduits at intervals along their extensions.

Fig. 4 illustrates a modified form of the embodiment of Figs. 1, 2 and 3, the exterior wall I1 being of substantially oval shape cylindrical configuration, which correlated with the integral partition 18', define a true cylindrical and unrestricted flow-conduit i9, and an appurtenant air-conduit 20, communication being afforded between the two conduits by a plurality of spaced perforations 2!, as in Figs. 1 and 2.

Fig. illustrates another embodiment of the present invention in which any desired type of standard pipe, such as that indicated at 25, has a plurality of perforations 25, preferably similar to the wide slit perforations described and illustrated with respect to Figs. 1, 2 and 3, provided in aligned spacial relation. along one side of its length; and has secured thereto in any convenient manner, such as by welding where a weldable metal is the material employed, an auxiliary channel member 2'1, at the location of and completely enclosing the plurality of perforations 26. In such manner, a pipe of standard diameter and configuration may be employed as the flow-conduit 28, and venting means, inclusive of the air-conduit 29, provided as an auxiliary feature of such standard types of pipe.

Figs. 6 and '7 are illustrative of another embodiment of this invention wherein any types of pipe, inclusive of pipe already installed, may be provided withvent means according to the present invention. The flow pipe 39 is representative of such type of pipe installation, and particularly of a soil pipe installation as illustrated in Fig. 1, in which it is desirable to incorporate air venting means. At 3! is indicated generally a flexible air-conduit assembly advantageously comprising the individual pipe elements 32, each of which has a lower end which is reduced in diameter, see 32a, to be freely received within the reverse and larger diametered end of an adjacent element 32, in telescopic relation thereto and articulatedly coupled thereto, as by means of a coupling pin 33. Advantageously, the direction of coupling, i. e., pivotal positioning of the respective coupling pins 33 is alternated, as at right angles to one another between respective consecutive coupling locations, to afford substantially universal flexibility for the resulting assembly. The air conduit 31 is thus provided with air venting, see at, at each location of coupling between adjacent pipe elements 32, and further, through its inherent flexibility, is adapted for ready placement and installation with flow-pipes including installations having numerous curves, angled bends, etc. The ,air conduit 3| is positioned within the flow-pipe in such manner that its air venting openings 34 are directed toward the direction of flow of matter falling through the flow pipe to thus increase the rate of discharge and avoid vacuum-creating conditions.

From the above, it appears that in the variant embodiments of my invention I provide conduit means for the discharge of liquids or liquids embodying therein suspended solid matter, and air conduit means, one conduit means embracing the other conduit means, and perforated means at succeeding locations, which may be uniformly spaced from one another, for affording mutual communication between the respective conduit means to provide air venting, such air venting perforated means being constructed to deflect flow of liquid from said discharge conduit means into said venting conduit means.

Whereas, I have described my invention by reference to specific forms thereof, it will be understood that many changes and modifications may be made without departing from the spirit of the invention.

I claim:

1. A piping system comprising a vertically extending material-fiow-conduit, an air conduit co-extensive lengthwise with said material-flowconduit, openings affording communication between said conduits, said openings being disposed at frequent intervals along the length of the conduits, and means disposed at each opening for deflecting the flowing material from passage through the opening into the air conduit.

2. Combined soil piping and air venting means comprising a liquid-flow-conduit, an air conduit co-extensive lengthwise with said liquid-flowconduit and having a wall in common therewith, and means defining a plurality of spaced latitudinal slots in said common wall, said means including lip members flared outwardly from said liquid-flow-conduit and directed opposite to the flow of liquid through said liquid-flowconduit.

3. A venting and discharge piping system comprising a material-flow-conduit, a flexible air conduit positioned within said material-flowconduit, and means included by said flexible air conduit affording communication between said conduits.

4. A venting and discharge piping system comprising a material-flow-conduit, a flexible air conduit co-extensive lengthwise with and positioned within said material-flow-conduit, and means included by said flexible air conduit affording communication between said conduits at intervals along their length.

5. Piping including in combination a materialfiow-conduit, a flexible air conduit co-extensive lengthwise With and positioned within said material-flow-conduit, said flexible air conduit comprising a plurality of short pipe elements in articulating partial-telescopic assembly, said short pipe elements being pivotally connected at their ends to one another, and the direction of telescoping of said pipe elements being opposite to the direction of material flow through said material-flow-conduit.

6. Combined soil piping and air venting means comprising a liquid-floW-conduit cO-extensive in height with said soil piping, an air conduit coextensive in height with and adjacent to said liquid-flow-conduit, means included by said liquid-flow-conduit and variantly spaced along its height affording connection with branch waste disposal lines, and openings affording communication between said conduits, said openings being disposed at frequent intervals along the length of the conduits and means disposed at each opening for deflecting the flowing material from passage through the opening into the air conduit.

7. Combined discharge and venting piping.

. comprising liquid discharge conduit means, air

venting conduit means adjacent said liquid discharge conduit means, and means affording mutual air venting communication at succeeding locations between said liquid discharge conduit means and said venting conduit means, said mutual communication means being constructed to deflect flow of liquid in said liquid discharge conduit means away from said venting conduit means.

8. Combined discharge and venting piping, comprising discharge conduit means, and air venting conduit means, one of said conduit means embracing the other, said embraced conduitmeans being perforated at succeeding locations lengthwise affording mutual communication between said two conduit means to effect air venting.

9. Combined discharge and venting piping, comprising discharge conduit means, and air venting conduit means, one of said conduit means embracing the other, said embraced conduit means being perforated at succeeding locations lengthwise affording mutual communication between said two conduit means to effect air venting, said perforations each embodying means for deflecting flow of liquid in said discharge conduit means away from said air venting conduit means.

10. Combined discharge and venting piping, comprising discharge conduit means, and air venting conduit means, one of said conduit means wholly embracing the other, said embraced conduit means being perforated at succeeding locations lengthwise affording mutual communication between said two conduit means to effect air venting.

11. Combined discharge and venting piping, a comprising discharge conduit means, and air venting conduit means, one of said conduit means wholly embracing the other, said embraced conduit means being perforated at succeeding locations lengthwise affording mutual communication between said two conduit means to effect said air venting perforations each embodying means for deflecting flow of liquid in said discharge conduit means away from said air venting conduit means.

HERBERT ALFRED FABER. 

